Platelets, tiny cells produced by bone marrow, are essential for blood clotting and preventing bleeding. Patients with leukemia, blood disorders, or those undergoing chemotherapy or radiation for cancer often can't produce enough, risking fatal hemorrhages. They depend on donations for survival. Plasma, blood's liquid portion, supports those with severe immune issues, major trauma, or critical illnesses.
Healthy adults aged 18 to 65 (up to 70 for whole blood donations) qualify. Donors may give platelets up to 12 times yearly (minimum 4 weeks apart) and plasma up to 24 times (minimum 2 weeks apart).
Performed by appointment at specialized centers via apheresis, blood is drawn through one or two needles, separated, with platelets or plasma collected and the rest returned to you. Platelet sessions last about 1.5 hours (vs. 10 minutes for blood donation); plasma takes 45 minutes. Rest, enjoy a snack afterward—no fasting needed. A light meal and hydration minimize discomfort.